A man accused in a shooting rampage that killed three teenage swimmers at a river on the Wisconsin-Michigan border has been charged with seven more felonies.
Scott J. Johnson is already facing three counts of first-degree intentional homicide.
Court records say he's now also charged with six counts of attempted first-degree intentional homicide and one count of second-degree sexual assault.
His attorney says he may look for an insanity plea.
Prosecutors say Johnson went to the Menominee River July 31 and opened fire on a group of swimmers, killing three and injuring one. Investigators say he fired about 17 shots.